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Recent content by canald

Yesterday's Tractor Forums
  1. C

    49 8N low oil pressure when engine is hot. Cam bearings??

    Here are some pictures. One other mod. I replaced all the head studs with like length grade 8 bolts. The studs were sloppy on the block holes. Rusted.
  2. C

    49 8N low oil pressure when engine is hot. Cam bearings??

    Ok. To answer some of your questions. 1. Cranking the engine with ignition off. I still have to 6v system, slow crank. After about 20 seconds of cranking, straight 30w, 45 degrees, I did get oil pressure to about 10 to 15 psi. I tried this a few times, got same results. 2. Pulled the oil...
  3. C

    49 8N low oil pressure when engine is hot. Cam bearings??

    I did not measure the oil pump gasket that came with the rebuild kit. I did not measure the clearances on the Cam journals. Didn't find the specs in the manual. I did check that the pickup tube was not leaking by pressurizing the tube, under water, to about 25 psi, no leak. However, I...
  4. C

    49 8N low oil pressure when engine is hot. Cam bearings??

    I will. Right now I'm working on the plow truck, snow season in Colorado. I'll get back to the 8N soon.
  5. C

    49 8N low oil pressure when engine is hot. Cam bearings??

    But, I believe I've seen a restrictor like that. Was it at the bottom of the canister?
  6. C

    49 8N low oil pressure when engine is hot. Cam bearings??

    Hobo, I have been chasing this issue for a better part of 3 years. I was a mechanic on British cars so I'm not a novice. However, I am not to old to learn something new. I agree that oil weight is not the issue because this is not an old rebuild. I have seen the same on MG oil pump relief...
  7. C

    49 8N low oil pressure when engine is hot. Cam bearings??

    My mistake on the governor. I thought it used oil pressure to function. Yes I still use the original oil filter and canister. Please see the reply to "used Red MN above. I've been replacing rounded brass fittings and may have missed a restrictor fitting.
  8. C

    49 8N low oil pressure when engine is hot. Cam bearings??

    I just had an oh crap moment. That restrictor fitting, where does it go? Ive been working on this tractor for a better part of three years. I have been replacing brass fittings because most were rounded off. I could have missed the small hole not knowing what it was for.
  9. C

    1948 8N Low Oil Pressure

    Straight 30. I tried 40, no difference.
  10. C

    1948 8N Low Oil Pressure

    Yep, took off the oil pan 4 times to ensure I didn't miss something. The only thing I didn't do was check the cam clearances. The lobes looked great. She runs like a champ. This engine had been rebuilt before. I shut her down 3 years ago back there was a knock. She still had good oil...
  11. C

    1948 8N Low Oil Pressure

    Complete. Rings, pistols, turn crank, main and rod bearings, machine connecting rods, oil pump including brass sleeve. Head was ok. New gasket set. Timing gears replaced, oil pressure relief spring and plunger replaced. In other words, I replace most everything.
  12. C

    1948 8N Low Oil Pressure

    I have a question. I rebuilt my 8n engine. All tolerances are within spec. My oil pressure at startup is about 60psi, verified with an independent gauge, then at running temp at idle, it is about 5 psi. I pulled the pan and checked rod and main bearings and oil pump, good. I rechecked the...
  13. C

    1949 8N Steering tight after rebuild

    Just finished rebuilding steering box. Replaced all parts that were worn or leaking. Put it together, made the adjustments per the manual. Filled box with 80W oil. Look no leaks. So proud of myself. Turned the steering column on the bench, a light stiff, thought it needed some breaking in...
  14. C

    8n front engine knock

    Ok folks, I removed the pistons and rods. I tried to move the sleeves, still solid. Sleeves look and feel very smooth. I have not measured them yet. The rod bears are nice and grey no copper showing, a little light scoring but nothing on the crank rod journals. I may still replace the rod...
  15. C

    8n front engine knock

    Yes for sure on the manifold. No rust, no black makes or carbon on head or manfold. Gaskets were pristine. I was afraid of that. Once I pull the pistons, if the sleeve is the problem, should I be able to pull it up by hand?
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